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28 | |
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29 | <div class="box center"> |
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30 | <img src="/shared/photos/rechnertechnik/anita-innen.jpg" width="694" height="520" alt="Photography of Anita's 'inner life'" /> |
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31 | <p class="bildtext-bildbreite" style="width: 694px;"> |
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32 | The "nightly" Anita inner life: The thyratrons flow redly, flashing during calculating. |
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35 | |
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38 | <img src="/shared/photos/rechnertechnik/anita-anzeige.jpg" width="396" height="268" alt="Anita's display" /> |
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39 | <p class="bildtext-bildbreite" style="width: 396px;"> |
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40 | This is a part from the numeric display. The gas-filled nixie tubes |
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41 | (glow lamp's principe) came onto the marktet just in time. |
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42 | </p> |
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47 | <img src="/shared/photos/rechnertechnik/anita-teile.jpg" width="516" height="250" alt="Multiple parts of Anita" /> |
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49 | <p> |
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50 | The upper circuit board contains a ring counter. The gas-filled thyratrons are very small. This |
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51 | was the only way to place approx. 190 pices into a manageable case. These relay tubes |
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52 | have only two states like mechanical relays. |
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53 | Additionally there are 11 vacuum tubes (ECC 82, left side) built into the calculator. |
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54 | </p><p> |
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55 | The complete counting decade with a nixie tube is shown below. |
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56 | </p> |
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